NM-464 over Unnamed Waterway
FairGrant County, New Mexico · 18.6 MI N of JCT US-70 · Structure no. 000000000005874
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected August 2023
- Type
- Culvert
- Concrete
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 30
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-464 over Unnamed Waterway is a concrete culvert carrying NM-464 over Unnamed Waterway in Grant County, New Mexico. It was built in 1958, so it is 67 years old, older than the New Mexico average of 51.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-464 over Unnamed Waterway built?
It was built in 1958, making it 67 years old in 2025.
What condition is NM-464 over Unnamed Waterway in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.
How much traffic does NM-464 over Unnamed Waterway carry?
About 30 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is NM-464 over Unnamed Waterway?
The structure is 29 ft (8.8 m) long with a longest span of 10 ft (3 m).
Who owns NM-464 over Unnamed Waterway?
It is owned by the State Highway Agency.